Means for excluding flies from buildings.



APPLICATION FILED MAY 25, 1911.

Patented Oct. 10, 1911.

3 SHEETSSHBET 1.

[ll/army I G. B. GILLESPIB.

MBAFB F011 EXCLUDING FLIES FROM BUILDINGS.

APPLIUATION FILED MAY 25. 1911.

Pate nted bet. 10,1911.

a minim-21mm z.

fi IIZT Z3 A Home .eilm gnaw 0in. GILLESPIE. MAN'S-iron 'xcwnma runsFROM BUILDINGS.

FZ-QPISLI-GATIDH FILED MAY 25, 1011. 1,005,535. Patented Oct. 10, 1911.

3 SHEET8*SHEBT 3.

A Home PATENT OFFICE.

cmnnns B. GILLESPIE, or GRAND FORKS, NORTH narrows;

MEANS FOR EXCLUDING FLIES FROM BUILDINGS.

the present specification is confined may beemployed in connection withfly-proof entrances differing in construction from those set forth insaid companion specification.

The leading objects of the present-invention are to prevent the entranceof flies into a building or an apartment by way of wickets for thedelivery of goods, or of the exit doorways.

Other objects will be set forth in the general description whichfollows.

Three sheets of drawings accompany this specification as parts thereof.

Figures 1 and 2 are perspective views of an oscillating wicketconstructed according to this invention; Figs. 3 and 4' are horizontalsections of the same, showing its doors in the positions represented byFigs. 1 and 2 respectively; Figs; 5 and 6 are horizontal sectionsthereof showing the doors in other positions; Figs. 7 and 8 are detailviews of its latch on a larger scale; Figs.

9 and 10 are large-scale detail views showing respectively the springhinge and telescopic construction of its secondary door; Figs. 11 and 12are. plan views of a rcvolv ing exit door for persons, constructed onthe same principle.

Like reference characters refer to like parts in all the figures.

The wicket a and exit 6, whichtogether constitute the means of thepresentljnvem tion for excluding flies from bu'i dings or apartments,are constructed; in common, with a vertical axis of motion; and withradial main doors, 1 and 2, or l 2' 3 and 4 rigidly united by a pivotpost, 5, forming sector-shaped passageway spaces between Specificationof Letters Patent. Patented Oct, 10, 1911-. Appllfation filed May 25,1911. Serial No, 629,365.

them, and turning within a suitable housing formed in part by asegmental wall, 6 or 6'; together with secondary swinging'doors, 7 or 7,-between the main doors. The secondvarydoors, 7 or 7, are also, incommon, provid'ed'with peculiarly operated latches, 8, hereinafter moreparticularly described, one of which'is shown in detail by Figs. 7 and8, andwith spring hinges, one of which is represented at 9 in Fig. 9, bywhich each secondary door 7 or 7 is normally held against the back ofthe main door to which it belongs, and is restored to this positionafter being temporarily detained in its fly: excluding position, whilethe main door moves away therefrom; the unlatchingcon tact of a maindoor with the secondary door being ada ted to kill any flies that maybebetween t e two. Said latches 8, common to both devices, are of thefollowing construction: (See Figs. 7 and 8.) A housing, 10, adapted tobe fixedly attached to the secondary door 7 M7 and suitably recessed,guides a horizontally slidable bolt, 11, the protruding end of which isor may be beveled, and which is provideclwith a longitudinal spur rack,12, engaged by a pinion or sector, 13, forming the hub of a lever arm14.- A coiled spring, 15, keeps the bolt 11 normally protruded; and thelever 'arm 14 and 'rack and pinion connection are retracting means. Thespring hinges -9, Fig. 9, may be of any suitable known or improvedconstruction; as may also said latches 8; neither of them forming anypart of the present invention, as regards their details of construction.

The housing of the wicket a, Figs. 1 to 6, inclusive, shown at 6,. isadapted to be sup ported upon a sales counter, 0, Figs. land 2, 1njuxtaposition to an o ening fitted thereto and formed in avest1bnle.wall, d, or the like, which is further provided with aconveniently located cash slot, 0, as represented in the same figures.The housing is sectorrshaped and opematboth radial sides thereof;itinclhdes horizontal top and bottom members, '16 and 17, in addition toits segmental wall 6; and its pivot post 5 has I bearings in said topand bottom members. Its inner and outer main doors land 2 are l j iprovided respectively witha handle, 18,

and with a latch-retracting projection, 19,

adjoining which a recess admits more or less of the latch as required.Its latch 8 is carried by the opposlng side or back of its secondarydoor 7, which is pivoted with 4 the aid of one or more of said springhinges seco ndary door 7, the latter is constructed fwit'li a telescopicfree edge, 21', shown in detail by Fig. 10; which see. The outer edgeportion" (21) is projected by the customary springs 22, .and itsprojection is limited by stops 23. The overlapping portions may positionof rest, Figs. 1 and 3, into the re-- ceiving position represented byFig. 5; the

secondary door 7 being in contact with the vto preferably be made ofthin sheet metal so as .to be substantially flush.

The main doors land 2 are connected at their lower edges by a bottom,24, on which parcels are 'placed by the salesman after pulling thewicket by the handle 18 from its back of the inner door 1, and theentrance of flies prevented by the outer door 2' within the housing. Thewicket is then moved by the salesman to its delivering position, Figs.

2 and 4, and the parcels are removed by the purchaser. The outwardmovement of the wicket is continued until it is arrested by a stop, 25.At the same instant a catch recess, 26, admits the bolt 11 of the latch8 twin Fig. 4, and the secondary door 7 becomes 'fastened in the outeropening of the wicket housing, so as toexclude flies therefrom duringthe return movement of the emptied wicket, as represented by Fig. 6.Toward the end of this movement, the projection 19 of the outer door 2comes in contact with the lever arm 1 1 of the latch 8, and retracts thelatch bolt 11; permitting the secondary door" 7 tobe thrown into contactwith the back of the, inner main door 1 by its spring hinge 9. I Themovement of-the wicket from this position (Figs. 1 and 3) to itsreceiving position (Fig. 5) is limited by the wall d through which thepassageway of the wicket' extends.

The housing of the fly-proof exit 6, Figs. 11 and'12,in addition to itssegmental wall 6, has a nearly circular top, 27, Fig. 12, anddiametrically opposite said segmental wall has a segmental guard, 28,whichmay preferably be a railing or grille, as 'indicated, and of largerradius that the segmental wall, so as to obviate making the second arydoors 7: telescopic. These secondary be otherwise of the sameconstruction, excepting-dimensions, as the secondary door 7"'abovedescribed; having in common therewith latches 8 and spring hinges 9 asalready described. For tripping the latches 8, each of the main doors 12' 3' and 4: is likewise constructed with a retracta mg projection 19and a recess 20 adjoining the same similar to those above described. Inthis device the main doors 1' 2 3 and 4 are adapted to be revolvedcontinuously by persons leaving the fly proof apartment from. which theexit passageway leads; the

latches 8 interacting successively with a striking plate, 30, attachedto a post, 31, at the outer end of the segmental guard 28.

With the doors.1 2 3 4' and7' in the positions represented .by Fig. 11,the main door 1' has just released one of the secondary doors 7, fromthe post 31, and is about to leave in its place the secondary door 7normally carried on the back of said main door 1. In this condition ofthe exit, both of the outer doorways, 32 .and 33, of the exit are closedby the main doors 2' and '1- respectively, and ersons may be supposed tobe between the the doors 3, and 4 and pressing against the backs of saiddoors 2 and 3 respectively as represented by the arrows a: and 3 Aninstant later the parts would appear as shown in Fig. 12; the person orpersons represented by said arrow :1: leaving the exit, and the oors 2and 3' and between space between the doors 4 and 1' opening ed by thedoor 3 interacting with the fly-' proot segmental wall 6, and thedoorway 33 -is closed by the secondary door 7 left by the main door -1.\Vhen the main door 2' reaches this secondary door 7 the projection 19of the main door trips the latch 8 of the secondary ,door, and thelatter is thrown by' its spring hinge, 9 into its normal position again,in contact with the back of the main door 1; the next secondary door,normally in contact with said door 2, taking its place .as theobstruction of the doorway 33 against the entrance of flies. Theentrance-of persons between a main door and its secondary door isprevented by the uard 28; and as the doorway 33 adjoining t e same isalways closed, either as shown in Fig. 11 or as shown in Fig. 12, saidguard need not be flyproof. 7

' The exit 6 represented by the drawings is one of a pair made right andleft respectively and arranged at the respective inner angles of therectangular inner end of a vestibule, in connection with a separatefiyproof entrance, as set forth in said compan- 1011 specification.

For the purposes of the present lnventlon the fly-proof entrance orentrances may be of any known or improved construction.

Certain modifications in matters of detail have been mentioned; andother like modifi cations" will suggest themselves to those skilled inthe ar 4 Having thus described saidimprovement; I claim asmyf1nvent1on,"{and desire'fto'pajt' ll ent under this specification:

1. In means for excluding flies from a building, the combination ofradial main doors rigidly connected with each. other and forming apassageway space between them,

a'secondary door arranged within said space I and normally in contactwith one of said 2. In means for excluding flies from a building, thecombination with radial main doors rigidly connected with each other andforming a passageway spaced between them,

of a secondary door arranged within said space and normally in contactwith one of said main doors, a latch carried by said secondary door fortemporarily detaining it in its fly-excluding position, while the maindoor dast mentioned moves away therefrom,

'a relatively fixed part adapted to interact with said latch, means forunlatching said latch, and means for restoring said second ary door toits normal position with reference to said last mentioned main door.

3. In means for excluding flies from a building, the combination with avertical pivot post of main doors projecting rigidly therefrom andforming a passageway space between them, a secondary door, arrangedwithin saidspace, having vertical hinges adjoining said post including aspring hinge adapted to keep it normally in contact with one'of saidmain doors, means for tempo? rarily detaining said secondary door in itsfly-excluding position while the main door last-mentioned moves'awaytherefrom, and means for releasing said secondary door an permitting-itto resume its normal position with reference to this main door.

4. In means for excluding flies from a building, the combination with ahousing having a segmental wall of main doors having the samejradiirigidly connected with each other forming a sector-shaped passagewayspace between them, a secondary swinging door movable within said spaceand normally in contact with one of said nain doors, means fortemporarily detaining said secondary'door in its fly-excluding positionwhile the main door last mentioned moves away therefrom, and meansforrestoring said secondary ddor to its normal position with reference tothis main door.

5. In means for excluding Flies from a building, a fiy-proof wicket forgoods, hav

ing, in combinatiomla fixed sector-shaped housing open at both radialside'sthereo f, af

m ro gh h lsam s' dl mit'ed p r of ain d ors.p vqtelly:merii leiwit n' hI with between them, a'bottom" movab e with said the retraction of saidmain doors and hot tom, and means for restoring said secondary door toits position in contact with the handle carrying main door.

6. In means for excluding flies from a building, a fiy-proof wicket forgoods, having, in combination, a fixed sector-shaped housing open atboth radial sides thereof, inner and outer main doors pivotally movablewithin and through the same, rigidly united with each other andforming apassageway space between them, a bottom movable with said main doors andadapted to carry the goods, a secondary swingin door movable betweensaid main doors and normally in contact withthe inner door, a handleattached to this inner door, a latch having a lever-arm retractingdevice and adapted to hold said secondary door in its fly-excludingposition during the retraction of said main doors and bottom,:and meansfor restoring said secondary door to contact with'said inner doorincluding a projection carried by said outerdoor on its back injuxtaposition to said lever arm.

' 7. In means for excluding flies from a building, a fly-proof wicketfor goods having, in combination, a fixed sector-shaped housing open atboth radial sides thereof, inner and outer main doors pivotally movabletherethrough and forming a .sector shaped'space between them, a verticalpivot post and a horizontal bottom rigidly connecting said ,doors, asecondary swinging door normally in contact with the'back of said innerdoor within said space, having a hinge edge adjoinin said post, meansfor detaining said secondary door in its fiy-exeluding position duringthe retraction of said main doors-and bottom, and means for restoringsaid secondary door to its position in contact with said inner maindoor, including aspring 'hinge at said hinge edge.

8. In means for excluding flies from a building, a fiy-proof wicket forgoods having, in combination, a fixed sector-shaped inner and outer maindoors pivotally mova-ble therethrough and a forming a sector shapedspace between them, a vertical pivot post and a horizontal bottomrigidly connecting said doors, a secondary swinging door normally. incontact with the back of l ,i 2 E 2 said inner door within said space,having a telescopic secondary door to its position in hinge edgeadjoining said post and made contact with szud inner mam door,substant'ele'scopic-to compensate for the differences tially ashereinbefore specified.

' in len th of radil, means for detaining said CHARLES B. GILLESPIE.

secon my door in its fly-excluding position Witnesses: during theretraction of said main doors PvMCLOUGHLIN, and bottom, and means forrestoring the M. NORMAN.

